Despite extravagant claims of enormous potential markets for earthworms in agriculture, in large-scale waste disposal systems, and as a source of food for animals and even people, the major use of earthworms today is as bait for freshwater sport fishing. Some worms are also sold to home and organic gardening enthusiasts for soil improvement and composting of organic refuse. Although research and development activities relating to other uses for worms are underway in various places, the opening of new markets for worms and castings will be slow and somewhat uncertain. Thus, anyone interested in the earthworm business should explore the potential local markets carefully, particularly if a full-time occupation is contemplated.
Meg Moynihan, Principal Administrator
Minnesota Farm Opportunities
Ag Marketing & Development Division